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The Librarians S04E01, And the Dark SecretS04E01

The Librarians · Season 4

The Librarians season 4 episode 1: And the Dark Secret

Aired 13 December 201741 minRated M

6.1TMDB · 9 votesMark watched

Where to watch The Librarians Season 4 in Australia

The Librarians season 4 is streaming in Australia on Foxtel Now (subscription) and Binge (subscription). You can also buy it on Apple TV from $17.99 and Fetch TV from $26.99.

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Availability checked 16 November 2026.

What happens in “And the Dark Secret”

When a secret sect of the Vatican Church unearths an ancient map detailing the locations of the four cornerstones of the Library of Alexandria (the original Library), it’s up to Flynn and the Librarians – with the help of an unexpected ally – to stop them before the stones can be used to destroy the Library.

Episode summary: TMDB.

Before you watch

  • It is the season premiere of season 4.
  • It runs about 41 minutes.
  • Directed by Marc Roskin, written by Marco Schnabel.
  • TMDB users rate it 6.1 out of 10 (9 votes).

The Librarians trailer

The official trailer for the series (no preview of this episode has been published).

The Librarians trailerPlay video: The Librarians trailer

Cast and crew of this episode

Director
Marc Roskin
Writer
Marco Schnabel
Guest stars
Rachel Nichols as Nicole NooneJohn Noble as Monsignor VegaGerman Santiago as Father GialloLex Damis as PriestNathan Crosby as Park RangerTim Harrold as CopTommy Daniels as PriestBarbie Wu as Photographer

Credits: TMDB.

More from The Librarians Season 4

  1. E01
  2. E02
  3. E03
  4. E04
  5. E05
  6. E06
  7. E07
  8. E08
  9. E09
  10. E10
  11. E11
  12. E12

Every episode of Season 4The Librarians episode guide

Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.